Thread-breaking device for spinning machines



May 12, 192s.

F. Q. HARTMAN ET AL THREAD BREAKING DEVICE FOR SPINNING MACHINES FiledDec. 20. 1924 INVENTORS ATTORNEYS Patented May 12, 1925.

UNITED STATES eater OFFICE. I

FERDINAND Q. HAETMAN ANDEUGENE .a'rwoon newsman, or DANVILLE, PENN-SYLVAN'IA.

THREAD-BREAKING DEVICE FOR SPINNING MACHINES.

Application filed December 20, 1924. Serial No. 757,202]

To all whom it may concern:

Be it known that we, FERDINAND Q. HART- MAN and EUGENE A'rwooo HARTMAN,citi- Zens of the United States, and residents of Danville, in thecounty of Montour and State of Pennsylvania, have invented a new anduseful Improvement in Thread-Breaking Devices for Spinning Machines, ofwhich the following is a specification.

This invention relates to a thread break ing device for spinningmachines and more particularly to a thread breaking device vwhich may beapplied to spinners for inclependently spinning a plurality of threadsand winding the threads so spun on a single spool, from which latter thethreads are subsequently to be twisted into one strand on a twistingmachine. It is quite essential in an operation of this kind, that asingle thread be not allowed to run onto the spool, as this wouldproducea serious defect when the threads so spun are finally twisted into astrand.

Our present invention is directed to a thread breaking device which maybe interposed between the spindles and the take up spool on which thespun threads are wound,

and which shall be under the control of thread guiding means, carried bythe breaker, to perform this function of breaking a companion threadwhen another thread is unintentionally broken, so that the severalthreads may be united before any one or more of the threads has or havebeen allowed to be wound upon the take up spool without its or theircompanion thread or threads. v v

The object of the invention is toprovide a device of this characterwhich is inexpensive, simple in construction, efficient and positive inoperation.

Another object consists in providing such a device whichhas threadguiding means pivotally mounted on a thread breaker which is located inposition to be thrown off center by the movement of the guide means,which movement is actuated by the breaking of a thread.

Another object consists in providing oer tain improvements in the form,construction and arrangement of the several parts whereby the abovenamed and other object may be effectively attained.

A practical emb diment of our invention is represented in theaccompanying draw- 1ngs,1n whlch Fig. 1 represents a front elevation'ofthe device in operative position, so much of the spinning machine beingshown as will sufflee to disclose a practical application of ourinvention. I

.Flg. 2 represents a vertical section taken inthe plane of the 1ine IIIIof, Fig." 1,

looking in the direction of the arrows.

,Fig. 8 represents a horizontal section taken inthe plane of the lineIII-III of Fig. 2, looking in the direction of 'the arrows, and

Fig. 4 represents parts shown inanother position 7 from that shown 1nFigs. 1 to 3 inclusive.

a detail section or the The vmain frame of the machine atone end isdenoted by 1, the takeup spool by '2, the traverse guide for assemblingthe threads and laying themon the take up spool, by 3, the wheel fordriving the take up spool by 4, and a'pair of spindles for spinning twoindependent threads by 5 and 6.

The bobbins which carry the threads are mounted on the spindles 5, 6,"inthe usual manner and are indicated by 7, 8. The

threads which lead from the respective b'ob- I bins 7 and 8 are denotedby 9 and 10.

For the purpose of supporting the thread breaking mechanism in properposition on the spinning machine so that there shall be one for eachgroup of threads to be combined on a single take up spool, we secure ahorizontal rail 11, to the end frame 1. of the spinning machine. Thisrail may be composed of wood so asto receive a screw l2 for attachingthe brackets 13of the thread breaking mechanism in position. Eachbracket 13 is provided with a loopshaped frame 1.4 having dependinglugs'l5," 16 ar-; 1

ranged to receive a pintle 17 upon which is mounted a thread breaker 18.The thread-l breaking mechanism proper consists of an 'ar'm'19 which is.pivoted on the pintle 17 between the lugs 15, 16 and which has aweighted portion 20 for overb alancing it so as to cause it to'assume asubstantially vertical position when in the act of break ing a. thread.A The lower end of the arm 19 is provided with across head 21, whichterminates in hook eyes 22, 23. Upon the i upper end of the weightedportion 2Q'there' is'mounted a thread guiding device, which comprises,in thepresent instance, a rectaninto an inwardly disposed eye 26 whichis 'gular block 2% having arms 25, which arms extend laterally inopposite directions; The.

outer end of each of the arms 25-is formed contracted at 27 and arrangedto ,guide and .hold the thread against unintentional displacement.

I These arms 2'5 with their eyes 26 may appropriately be formed of Wire,

2 on a screw 28 having a threaded :eng-age- The block 24 is secured inposition to rotate ment'with the weighted portion 20." ,j-Combined guideand tension elements 29, are secured to wings 31, 82 of the frame14c'bymeans ofscrews 33, 3%. These. ,guide' I I I I machines in which'aplurality of threads and tension elements have coiled body portions 35,36 and upwardly extending hook shaped stems 37,88. These combined guideELIId'tGIlSl'OD elements may appropriately be composediot coiled wireand bent into shape and it is intended thatthe thread shall be .passedthrough one or more of the coils of,

the body portions 35, 36 and then wound upon the stems. 37, 38 one ormore timesin order to-give theidesired tension.

The threadsare also guided their upward movement by a pigtail 39 whichis secured to an vuprising curved abutment 40 by means votascrew 41.This curved abutment 4O isiiormed integral with the frame 14 of thebracket 13. I

over the traverse guide 3 and onto the spool. It will be seen that bypassing the threads from the guide and tension elements through the eyes26 to the igtail-39,

the arms 25, and the counterbalanced arm 19 will be held by the threadin the'position shown in Figs 1 to 3 inclusive. It,

during the operation of the machine, one of the threads 9, 10accidentally breaks, the

,tension on one of the arms 25 will be re lieved and the drag of theunbroken thread on the other arm will cause the block 2t to 1 swingarcuately on its pivot 28. As the retaining tensionof the thread on thearms is removed, the arm 19 by the action oflthe ,weighted portion 20will be overbalanced,

and caused to swing downwardly into the position shown in Fig. 4, and indotted out line in Fig. 2. In this position, the crosshead 21 willbe'placed so, that the whirl of :the. spindle carrying the unbrokenthread will throw the thread into one of the hook eyes 22, 23,, form aloop which will promptly break the unbroken thread. This will enable theoperator to join the broken ends of each member of the group of threadsbeing wound on the take up spool 2, so that there 'Inay be, at no time,any distanceo'f single thread woundion'the said take up spool 2 and thedefect which would otherwise take place in the finally twisted strand isthereby avoided.

I It will be understood that various changes may be resorted-to in theform, construction and arrangement of the seV- eral parts withoutdeparting from the spirit and scope of our invention; and hence, we donot intend to be limited to the details herein shown and described,exceptas they may be included in the claims. i

Whatweclaim is; I I I 1. A thread breakingdevice for spinning areindependently spun and wound .on a sin- "gle take up spool comprising, acounterbalanced thread breaker pivoted to swing into position to breakthe threads, and a device carried by said breaker for guiding thethreads, said device being movableon the breaker, the device and breakerbeing re leased by the breaking of a thread to permit the breaker toswing into the path of the-unbroken thread, 7, I

2. A thread breaking 'device for spinning machines in which a pluralityof threads are independently s un and wound on a single take up spoolcomprising, a counterbalanced thread breaker pivoted to swing intopositionto break the threads, and, a device pivotally mounted thereontor guiding the threads, said' device and breaker being released by thebreaking of a thread to permit the breaker to swing into the path oftheunbroken thread. 4 j j 3. A thread breaking device-for spinning machinesin which a plurality of threads are independently spun and WOUDd' OD asingle ta e up spool comprising, a counterbalanced thread breakerpivoted to swing 1 into position to break the threads, and a devicepivotally mounted'ther'eon and having guides -for the threads, saiddevice and bre'akerbe'ing released by the breaking of a thread to permitthe breaker to swing into the path of the unbroken thread -4:. A threadbreaking device for spinning inachi'n'es'in which a plurality of threadsare independently spun and wound on a single take up spool'comprising, a'counterbalanced thread breakerpivoted 'to swing intopositi'on to breakthe threads, and a device pivotally'mounte'd thereon and havinglaterally eXtend ing guides for thethreads, said device and breakerbeing released by 2 the breaking of a thread'to permit the breaker toswing into the path of the unbroken thread; v

5. A thread breaking device for spinning [machines in which plurality ofthreads are independently spun and wound on a sin breaking of a threadto permit the breaker gle take up spool comprising, a eounterbalto swinginto the path of the unbroken 1 aneed thread breaker pivoted to swinginto thread.

position to break the threads, and a device In testimony, that We claimthe foregoing pivotally mounted thereon and having as our jointinvention, e have signed our guides extending laterally in oppositedinames this 18th day of December 1924. reetions therefrom forthethreads, said de- FERDINAND Q. HARTMAN. n vice and breaker beingreleased by the EUGENE AT'WOOD I-IARTMAN.

